﻿
using System;
using System.ServiceModel;

namespace WSU.Cheka.Duplex.Contracts
{
    /// <summary>
    /// callback contract no need to attach [ServiceContract] attribute
    /// </summary>
    public interface IResultCallback
    {
        [OperationContract(IsOneWay = true)]
        void Display(float x, float y, string opSymbol, float result);
    }
}